TW202014313A - Writing instrument in which a writing part does not come into contact with a ruler and can be manufactured easily - Google Patents

Abstract

The object of the present invention is to provide a writing instrument configured in such a manner that a writing part does not come into contact with a ruler and can be manufactured easily.The writing instrument (1) includes an ink guiding part (7), a writing part (8), and a holding body (3) having a holding part (4) for holding the writing part (8) and a mounting part (5) mounted in a writing instrument body (2). The holding part (4) is opened at a tip side, and at least one lateral side is formed with a wall part (431) arranged along a side surface of the writing part (8) in a state that a tip end of the writing part (8) is projected toward the tip side so as to make a writing body writable.

Description

Writing tools

The present invention relates to writing instruments such as singular pens.

It is known that in writing instruments such as singular pens, the tip of the writing portion where ink is induced is exposed. Therefore, when using a ruler to draw a line, the ruler and the tip of the writing part are in contact, and ink will adhere to the contact portion of the ruler with the writing part, and the ruler will be soiled. Furthermore, by repeatedly contacting the ruler, the writing part may also be damaged.

Regarding this, when a ruler scribe line is used, a writing implement that can prevent the ink of the writing part from adhering to the ruler has been proposed (for example, refer to Patent Documents 1 and 2). The writing instrument of Patent Document 1 is provided with two through-holes and two grooves in the holding body held by the writing part, and by dividing the writing part into two by forming a part divided into two in the middle of the writing part The strand portion is arranged in two through holes and two grooves so that the writing portion is not arranged outside the side surface of the holder. Therefore, when using a ruler to draw a line, since the lateral end of the holder will contact the ruler, the exposed portion of the writing portion will not contact the ruler. The writing instrument of Patent Document 2 is a structure in which a covering member is provided on the outer surface of the writing portion, and the portion in contact with the ruler is left in the covered portion, and the leading writing portion is cut to expose. Since the portion provided with the covering member will be in contact with the ruler, the exposed portion of the writing portion will not be in contact with the ruler. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2001-253193 [Patent Document 2] Japanese Unexamined Patent Publication No. 2001-18575

[Problems to be solved by the present invention]

In the writing instrument of Patent Document 1, since the writing part is divided into two strands, they are arranged in two through holes and two grooves, so it is easy to consume labor and time when manufacturing. In addition, the writing instrument of Patent Document 2 is provided with a covering member on the outer surface of the writing portion, and when forming a portion where the covering member remains and a cut portion, it is easy to consume labor and time in manufacturing.

An object of the present invention is to provide a writing implement that does not come into contact with a ruler and can be easily manufactured. [Means to solve the problem]

(1) The writing instrument of the present invention includes a writing instrument body extending in a predetermined direction, an ink induction portion that induces ink contained in the writing instrument body and extends in an axial direction of the writing instrument body, and can A writing portion that is connected to the leading end side of the ink induction portion and is induced toward the ink induction portion by a writing body, a holding portion that holds the writing portion, and an attachment portion that is attached to the writing instrument body The holding body, the holding portion, is open at the tip side, and at least one of the side surfaces is formed along the aforesaid state with the tip of the writing portion protruding toward the tip side to write the writing body A wall portion arranged on the side of the writing portion.

(2) The writing portion has a length in the width direction greater than that in the thickness direction, and the leading end of the writing portion is such that one side of the width direction is located closer to the side than the other side of the width direction The aspect of the writing instrument body side is formed obliquely with respect to the axis direction of the writing instrument body, and the wall portion is preferably arranged on one side in the width direction of the writing portion.

(3) The ink-inducing portion and the writing portion are preferably configured to form a writing core that is approximately L-shaped.

(4) The holding portion has a groove-shaped writing portion holding portion whose front end side and one side surface are opened. The writing portion is assembled to the writing portion holding portion from one side of the writing portion holding portion. The writing portion holding portion preferably has a restricting mechanism that restricts the movement of the writing portion.

(5) The restriction mechanism preferably has a groove-shaped narrow holding portion narrowing toward the front end in the opened portion of the holding portion on the front end side.

(6) The holding portion has a tip-side installation surface disposed on the tip side of the holder and provided with the writing portion, and a socket disposed on a side surface of the holder and provided with the ink-inducing portion A side surface installation surface, and a pair of front side ribs standing upright from the front end installation surface toward the front end side, and a pair of one side side ribs standing upright from the one side surface installation surface toward a side surface side, the ink The inducing portion and the writing portion constitute a writing core formed into an approximately L-shape. The narrow holding portion is formed by the pair of leading-end side ribs whose width narrows toward the leading end side. The writing core holds the holding portion. On the tip side of the portion, the writing portion is formed by the pair of tip side ribs and the tip side installation surface in a state where the narrow holding portion composed of the pair of tip side ribs restricts the movement of the tip side It is preferable to be held by the holding part by being held between the side surfaces of the pair of side ribs by fitting the ink induction part on one side of the holding part.

(7) The restriction mechanism preferably has an engagement restriction portion formed on the other side of the holding portion and engaged with the writing portion.

(8) The holder is preferably provided with a visible portion that can visually confirm the writing direction during writing.

(9) The mounting portion has a stepped surface formed toward the writing instrument body side, and the writing device body has an abutment surface formed inside the writing instrument body and formed toward the holding body side and the stepped surface abuts It is preferable that the abutment surface is arranged on the rear side of the front end of the writing instrument body.

(10) The writing instrument body is formed in a cylindrical shape, protruding from the inner surface of the writing instrument body toward the radial center side, and guiding the ink guide portion toward the radial center side of the writing instrument body The guide is better. [Effect of invention]

According to the present invention, a writing implement can be provided, the writing part does not come into contact with the ruler, and can be easily manufactured.

Hereinafter, an embodiment of the writing instrument of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view showing the writing instrument 1 of the present invention. Fig. 2 is an exploded perspective view of the writing instrument 1 of the present invention. FIG. 3 is a perspective view showing an enlarged display of a part of the bold tip 1a of the writing instrument 1. FIG. FIG. 4 is a perspective view from the upper side showing a state in which the bold-side writing core 6 is assembled to the writing instrument body 2 through the bold-side holding body 3. Fig. 5 is a perspective view from the lower side, showing a state in which the bold-side writing core 6 is assembled to the writing instrument body 2 through the bold-side holding body 3; FIG. 6 is a perspective view showing a state in which the bold-side holding body 3 to which the bold-side writing core 6 is attached is assembled to the writing-body main body 2 in the writing instrument 1. FIG. 7A is a cross-sectional view taken along line A-A of FIG. 3. FIG. FIG. 7B is a cross-sectional view taken along line B-B of FIG. 3. FIG. 7C is a cross-sectional view taken along line C-C of FIG. 3. Fig. 8A is a sectional view taken along the line D-D in Fig. 3; Fig. 8B is a cross-sectional view taken along the line E-E in Fig. 3; FIG. 9 is a diagram showing a case where a ruler 100 is used to draw a line with the writing instrument 1.

The writing instrument 1 of this embodiment is, for example, a singular pen. As shown in FIG. 1, the writing instrument 1 of the present embodiment is formed to extend in a predetermined direction, and has a bold writing tip 1 a on one side in the longitudinal direction and a thin writing tip 1 b on the other side in the longitudinal direction.

As shown in FIGS. 1 and 2, the writing instrument 1 includes a writing instrument body 2, a bold-face side holding body 3 (holding body), a bold-face side writing core 6 (writing core), and a large cap 11 , And fine writing side writing core (not shown), and cap 12. The bold writing core 6 is formed into an approximately L-shape by the ink guiding portion 7 and the writing portion 8. In the bold-side holding body 3, the bold-side writing core 6 is attached, and the bold-side holding body 3 in which the bold-side writing core 6 is attached is attached to the writing instrument body 2.

In addition, in the present embodiment, the writing instrument 1 of the present invention has the main body formed on the side of the bold-face pen 1a. Therefore, in the following description of the writing instrument 1 of the present embodiment, the "front end" means the end of the writing instrument 1 in the lengthwise direction of the bold writing tip 1a side, and "rear end" and "rear" are It refers to the "end of the opposite end of the tip" and "the direction of the end of the opposite end of the bold tip" 1a of the writing instrument 1 in the longitudinal direction.

Description writing instrument body 2. The writing instrument main body 2 is, as shown in FIGS. 1 and 2, provided with a cylindrical shaft portion 21 extending in a predetermined direction, and a batt 29 disposed inside the shaft portion 21.

The batt 29 is housed inside the shaft barrel 21 and extends in the axial direction J of the writing instrument body 2. The ink for writing is impregnated in the cotton wool 29. The bold writing core 6 is the thick writing tip 1a side into which the cotton batting 29 is inserted, and the large cap 11 is the end (primary end) that covers the thick writing side writing core 6 side of the writing implement 1. In addition, the writing core (not shown) is the side of the thin writing tip 1b into which the cotton wool 29 is inserted, and the cap 12 is the end portion on the side of the writing core (not shown) covering the writing implement 1.

The shaft barrel portion 21 includes a body shaft barrel 22 and a thick core side shaft barrel 23.

The main body barrel 22 is formed into a cylindrical shape as shown in FIG. 2. A body-side bolt groove 221 is formed on the inner peripheral surface of the end of the body barrel 22 on the side of the thick-blade tip 1a. The body-side bolt groove 221 is a thick-core bolt groove 27 screwed into the outer peripheral surface of the thick-core shaft barrel 23. A small cap 12 is attached to the end of the main body barrel 22 on the side of the fine-tip pen 1b.

As shown in FIGS. 2 to 6, the thick core-side shaft cylinder 23 includes a cylindrical portion 24 formed in a cylindrical shape, an annular surface portion 25 disposed at the front end of the cylindrical portion 24, and a flange portion 26 , And thick core-side bolt groove 27, and shaft-side mounting portion 28.

The cylindrical portion 24 extends in the axial direction J of the writing instrument body 2 as shown in FIG. 2. As shown in FIGS. 4 to 6, the annular surface portion 25 is formed into an annular shape extending from the tip of the cylindrical portion 24 toward the radially inner side of the cylindrical portion 24 by a predetermined length. The annular surface portion 25 is formed obliquely with respect to the axial direction J as shown in FIG. 7A. On the inner side in the radial direction of the annular surface portion 25, as shown in FIG. 6, a rectangular opening 251 penetrating in the axial direction J is formed.

The rectangular opening 251 is formed as a rectangular opening at the center in the radial direction of the annular surface portion 25 as shown in FIG. 6. The rear end of the bold-side holding body 3 to which the bold-side writing core 6 is attached is inserted into the rectangular opening 251 and attached. The ink-inducing portion 7 of the bold-side holder 3 is inserted into one side in the radial direction of the rectangular opening 251 (the upper side in FIG. 6 ), and the mounting protrusion 51 of the bold-side holder 3 is inserted into the rectangular opening 251. The other side in the radial direction (lower side in FIG. 6).

As shown in FIG. 2, the flange portion 26 is formed to protrude in an annular shape from the outer circumferential surface of the cylindrical portion 24 across the entire circumferential direction of the cylindrical portion 24 from the outer circumferential surface of the cylindrical portion 24. The end face of the main body barrel 22 on the side of the thick-blade tip 1 a is the end face on the other side of the flange portion 26. The end surface on the writing instrument body 2 side of the large cap 11 is an end surface that abuts on one side of the flange portion 26.

The thick core-side bolt groove 27 is an outer peripheral surface formed on the end portion side of the body shaft cylinder 22 side of the cylinder portion 24 and is screwed into the body-side bolt groove 221 of the body shaft cylinder 22.

As shown in FIGS. 6, 7B, and 7C, the bold-side holding body 3 (holding body) to which the bold-side writing core 6 is attached is attached to the shaft-side mounting portion 28. The shaft-side mounting portion 28 has a pair of protruding U-shaped portions 281, a pair of first corner segments 282, a pair of second corner segments 283, and a guide inclined protrusion 284 (guide Lead) (refer to Figure 7B).

The pair of protruding U-shaped portions 281 are arranged at the edges of the rectangular opening 251 of the annular surface portion 25 as shown in FIG. 6. A pair of protruding U-shaped portions 281 are formed to protrude from the annular surface portion 25 toward the tip end, and the shape seen from the tip end side is formed to be approximately U-shaped. The pair of protruding U-shaped portions 281 and the U-shaped open side portions of each other are arranged to face the radial direction of the cylindrical portion 24.

The pair of protruding U-shaped portions 281, as shown in Figs. 6, 8A, and 8B, respectively include a pair of fitting portions 281a and a plurality of guide protrusions 281b.

As shown in FIG. 6, the fitting portion 281 a is constituted by an inner edge of the cylindrical portion 24 at the rear end of the protruding U-shaped portion 281. The pair of fitting portions 281a are arranged to face each other in the radial direction of the cylindrical portion 24. In the fitting portion 281a, by inserting the mounting portion 5 formed at the end on the rear side of the bold-side holding body 3 into the rectangular opening 251, as shown in FIGS. 8A and 8B, the bold side is held The mounting convex portion 51 of the mounting portion 5 of the body 3 (described later) is fitted.

The plural guide protrusions 281b are provided on the inner side surface of the protruding U-shaped portion 281 as shown in FIG. 6, and are formed to protrude in an arc shape on the center side in the radial direction of the cylindrical portion 24. The plural guide protrusions 281b restrict the movement of the mounting portion 5 in the radial direction of the writing instrument body 2 and prevent the movement between the cylindrical portion 24 and the mounting portion 5.

As shown in FIGS. 5 and 6, the pair of first corner segments 282 are in the radial direction of the cylindrical part 24 on the inner side of the writing instrument body 2 in the rectangular opening 251 of the annular surface 25, The corner of the concave corner from the side where the ink induction portion 7 is arranged protrudes inward in the radial direction. Between the pair of first corner segment portions 282, an ink induction portion 7 is arranged. The first corner portion 282 has a first abutment surface 282a (abutment surface) formed toward the front end side in the axial direction J.

The first abutment surface 282a is composed of a surface on the tip side of the first corner section 282, and the first-stage difference surface 521 (described later) of the first-stage section 52 of the bold-side holder 3 abuts on the first接面面282a. The first abutment surface 282a is arranged on the inner side in the radial direction of the writing instrument body 2 on the rear side from the front end of the writing instrument body 2.

The second corner segment 283 is the inner side of the writing instrument body 2 in the rectangular opening 251 of the annular surface portion 25, from the corner of the concave corner opposite to the side where the ink inducing portion 7 is disposed toward the radially inner side Protruding protrudingly. The second corner segment 283 has a second contact surface 283a (contact surface) formed toward the tip side.

The second contact surface 283a is formed by the surface on the tip end side of the second corner segment 283, and the second-stage difference surface 531 (described later) of the second segment 53 of the bold-side holder 3 is in contact with the second Abutment surface 283a. The second abutment surface 283a is located on the inner side in the radial direction of the writing instrument body 2 and is arranged on the rear side of the writing instrument body 2 at the front end.

As shown in FIG. 7B, the guide inclined protrusion 284 is located on the front end side of the inner surface of the cylindrical portion 24 on the side of the ink-inducing portion 7 where the rectangular opening 251 of the annular surface portion 25 is arranged. The inner surface protrudes toward the center in the radial direction. The guide inclined protrusion 284 is formed to be inclined as it protrudes from the front end toward the rear side. The guide inclined protrusion 284 is the case where the ink induction portion 7 is inserted into the rectangular opening 251, and the ink induction portion 7 is pressed toward the center of the radial direction of the cylindrical portion 24, and the ink induction portion 7 is directed toward the diameter of the cylindrical portion 24 Guide on the center side of the direction. Since the ink guide portion 7 can be guided toward the center side of the cotton wool 29 in the radial direction, the ink can be stably supplied from the cotton wool 29 toward the ink guide portion 7.

Description bold writing side writing core 6. The bold-side writing core 6 is mounted on the bold-side holding body 3 as shown in FIGS. 5 and 6, and the bold-side holding body 3 with the bold-side writing core 6 is mounted on the writing With body 2.

As shown in FIGS. 5 and 6, the bold writing core 6 has an ink induction portion 7 and a writing portion 8, and is formed into an approximately L-shape by being integrated. The bold writing core 6 has a width in the thickness direction T, and the writing portion 8 disposed on the tip side is formed in the width direction W to have a width. The width direction W of the bold writing core 6 coincides with the vertical direction of the paper surface in FIGS. 4 to 6 in this embodiment. The thickness direction T of the bold writing core 6 coincides with the horizontal direction of the paper surface in FIGS. 4 to 6 in this embodiment among the radial directions of the ink inducing portion 7.

As shown in FIG. 4, the ink inducing portion 7 is arranged on the radially upper side (one side) of the writing instrument body 2 and extends in the axial direction J of the writing instrument body 2. The ink inducing unit 7 induces the ink contained in the writing instrument body 2 toward the writing unit 8 side. The ink guide portion 7 is an opening holding portion 42 (described later) disposed on one side of the holding portion 4 of the bold-side holding body 3. The ink induction portion 7 is fitted between a pair of one side ribs 482 (described later) in the one side opening holding portion 42 of the holding portion 4 of the bold side holding body 3.

Although the writing part 8 is composed of a porous body member, for example, a fiber core, a sintered core, and a felt are used, it is not limited to this as long as it can be written by the writing body using ink induced to the ink induction part. The writing unit 8 is connected to the tip side of the ink inducing unit 7 and extends from the tip of one side of the writing instrument body 2 in the axial direction J of the ink inducing unit 7 to the radially lower side of the writing instrument body 2 (the other side) Side) extension. The direction in which the writing portion 8 extends is referred to as the width direction W. The writing portion 8 is a tip-side opening holding portion 41 (described later) that is arranged on the holding portion 4 of the bold-side holding body 3. In the writing part 8, the front-end opening holding part 41 of the holding part 4 of the bold-side holding body 3 restricts the movement of the front end toward the narrow holding part 411 composed of a pair of front-end ribs 481 In this state, it is held between the pair of tip side ribs 481 and the tip side installation surface 471. By holding the writing portion 8 between the pair of tip-side ribs 481 and the tip-side installation surface 471, the writing portion 8 and the bold-side holding body 3 can be held without wandering during writing. The writing unit 8 can use the ink induced toward the ink inducing unit 7 to write on the surface to be written with writing materials such as characters and lines.

As shown in FIG. 4, the writing section 8 has a narrow writing section 81 arranged on the tip side, a rear end pedestal section 82 connected to the rear end of the narrow writing section 81, and a narrow writing section 81 The engagement convex portion 83 at the front end (the lower end) in the width direction W.

As shown in FIGS. 8A and 8B, the narrow writing portion 81 is arranged on the tip end side of the writing portion 8 in the axial direction J, and narrows the width in the thickness direction T toward the tip end of the axial direction J. The front end of the narrow writing portion 81 in the axial direction J is as shown in FIG. 7A, and when viewed from the side, as it goes from the upper side (one side) toward the lower side (the other side) of the ink induction portion 7 side It is inclined toward the writing instrument body 2 side.

The rear end pedestal portion 82 is connected to the rear end of the narrow writing portion 81 in the axial direction J as shown in FIGS. 4 and 7B. The rear-end pedestal portion 82 is the case where the bold-side writing lead 6 is attached to the bold-side holding body 3, and the rear end surface in the axial direction J is the leading end side of the holding portion 4 arranged in the bold-side holding body 3 The installation surface 471 (described later).

As shown in FIGS. 5 and 7C, the engaging convex portion 83 protrudes from the portion on the rear side in the axial direction J of the front end (lower end) in the width direction W of the narrow writing portion 81 toward the lower side in the width direction W . The engaging convex portion 83 is engaged between the restricting protrusion 432 and the tip-side installation surface 471 when the bold-side writing lead 6 is attached to the bold-side holding body 3. By engaging the engaging convex portion 83 with the engaging restricting portion 49 (the restricting protrusion 432 and the tip-side installation surface 471) (to be described later), the leading end side of the width direction W of the core 6 is written on the bold side, so that the writing portion 8 Movement to the front end side and the rear side of the axial direction J is restricted.

Description bold font side retainer 3. In the bold-face side holding body 3, as shown in Figs. 3 to 5, a bold-side writing core 6 is attached. The bold-side holding body 3 is formed in a plate shape, has a width in the thickness direction T, and has a width in the width direction W, and is formed to extend in the axial direction J.

The bold-side holding body 3 is in a state where the bold-side writing core 6 is held, and has a visible portion V that can visually confirm the writing direction during writing. "Writing direction" means the direction in which writing proceeds when writing. In more detail, the visible portion V is a character and line (not shown) that can be written in the writing direction by visual confirmation in advance while the bold-side holding body 3 holds the bold-side writing core 6. The bold side holding body 3 is formed of a material that can visually confirm the characters and lines written in the writing direction. Alternatively, a through hole may be formed in a portion of the visible portion by visually confirming the writing direction. In this embodiment, the bold-side holding body 3 is formed of, for example, a transparent material or a translucent material. Since the visible portion V is provided on the bold-side holding body 3, the writing body such as characters and lines written in the writing direction can be confirmed, so that it is easy to understand the end of writing and the end of stroke.

The bold-side holding body 3 includes a holding portion 4 arranged on the tip side, and a mounting portion 5 connected to the rear end of the holding portion 4.

The holding portion 4 holds the bold writing core 6. The holding portion 4 has, as shown in FIG. 4, a tip opening holding portion 41 (writing portion holding portion) formed by opening the tip side and holding the writing portion 8, and being opened by a side surface On the other hand, the one-side opening holding portion 42 formed and held by the ink-inducing portion 7 is arranged on the other side, and the other-side locking portion 43 is arranged. The tip-side opening holding portion 41 includes a narrow holding portion 411 (restriction mechanism) and an engagement restriction portion 49 (restriction protrusion 432 and tip-side installation surface 471) (restriction mechanism).

Moreover, as shown in FIGS. 4 and 7A, the holding portion 4 has an installation surface 47, a pair of front-end side ribs 481, 481, and a pair of one-side side ribs 482, 482.

The installation surface 47, as shown in FIGS. 4 and 7B, has a tip-side installation surface 471 disposed on the tip side of the bold-side holder 3, and a side surface disposed on the bold-side holder 3 The side side is provided with a surface 472. The tip-side installation surface 471 is a bottom surface that constitutes the tip-side opening holding portion 41 and faces the tip side in the axial direction J, and extends in the radial direction of the writing instrument body 2. The writing unit 8 is provided on the tip side installation surface 471. A side surface installation surface 472 is a bottom surface that constitutes a side surface opening holding portion 42 and faces a side surface of one side, and extends in the axial direction J of the writing instrument body 2. The ink guide 7 is provided on a side surface 472.

The pair of tip-side ribs 481 and 481 are erected from the tip-side installation surface 471 toward the tip-end side and face the direction crossing the axis direction J of the writing instrument body 2. The pair of one side ribs 482 and 482 are erected from the one side installation surface 472 toward the one side and face the direction crossing the axis direction J of the writing instrument body 2.

The tip side rib 481, as shown in FIG. 8A, an inclined line K connecting the outer surface of the tip side rib 481 on the tip side portion and the outer side of the narrow writing portion 81 on the tip side portion of the writing portion 8 is a writing instrument The axial direction J of the body 2 is preferably formed within the range of the angle θ. The angle θ of the inclined line K with respect to the axial direction J of the writing instrument body 2 is, for example, preferably 45° or less, and further preferably 35° or less.

As a result, the leading-end side rib 481 is located on the rear side of the narrow-end writing portion 81 at the leading end side of the writing portion 8, so that the leading-end portion of the narrow writing portion 81 of the writing portion 8 has more exposed portions. Therefore, when the tip side rib 481 is tilted toward the paper surface and the inclined writing instrument 1 is used, the tip side rib 481 tilts the tip side rib 481 toward the paper surface and tilts the writing instrument 1 until the writing instrument body 2 The axis direction J does not come into contact with the paper surface until it becomes an angle θ with respect to the paper surface. Therefore, by the angle θ of the inclined line K with respect to the axial direction J of the writing instrument main body 2, writing can be easily performed in a state where the tip side rib 481 is tilted down toward the paper surface side.

In particular, in the writing instrument 1 of the present invention, since the writing direction can be visually confirmed by the visible portion V during writing, the writing instrument 1 can be written with the writing instrument 1 turned down. In this case, it is also easy to write in a state where the tip side rib 481 is tilted down toward the paper surface side, so in the state where the tip side rib 481 is tilted down toward the paper side, the writing direction can be directed through the visible portion V Check visually while writing best.

The tip-side opening holding portion 41 is formed by opening the tip side and one side of the holding portion 4 as shown in FIGS. 4, 5, 8A, and 8B, to form the writing instrument body 2 Groove extending in the radial direction. The tip-end opening holding portion 41 has a narrow holding portion 411. As shown in FIGS. 8A and 8B, the narrow holding portion 411 is composed of a pair of leading-end side ribs 481. In the opened portion on the leading end side of the holding portion 4, a leading end facing the axial direction J is formed The width in the thickness direction T is narrowed in a groove shape.

In the narrow holding portion 411, as shown in FIGS. 4 and 5, a narrow writing portion 81 of the writing portion 8 is arranged. The narrow holding portion 411 holds the writing portion 8 in a state where movement of the narrow writing portion 81 of the writing portion 8 toward the tip side is restricted by the pair of tip side ribs 481, and restricts the writing portion 8 from moving toward the tip side The composition of the restriction mechanism. The narrow writing portion 81 of the writing portion 8 is a narrow holding portion 411 assembled to the front opening holding portion 41 from one side of the front opening holding portion 41.

The one side opening holding portion 42 is formed by opening one side of the holding portion 4 and forming a groove shape extending in the axial direction J of the writing instrument body 2. The one-side opening holding portion 42 is composed of a pair of one-side side ribs 482. The one side opening holding portion 42 holds the ink guiding portion 7 by fitting the ink guiding portion 7 between the pair of one side ribs 482.

The other side locking portion 43 locks the other side of the holding portion 4 as shown in FIGS. 4 and 5. The other side latch 43 has a wall 431 and a regulating protrusion 432.

The wall portion 431 protrudes toward the tip end in a semi-circular arc shape at the tip end of the other side latch 43 in the axial direction J. The wall portion 431 is, as shown in FIGS. 3 and 7B, on the other side of the bold-side holding body 3, with the tip of the writing portion 8 protruding toward the tip end, and can be written by the writing body. The other side of the writing section 8 is arranged. The wall portion 431 is a range where the other side surface of the writing section 8 is exposed, is limited to a range where the ruler does not contact the writing section 8 during writing, and protrudes toward the front end side in the axial direction J.

In this embodiment, on the tip side of the holding portion 4, the wall portion 431 is formed by protruding from the other side latch portion 43 of the holding portion 4 toward the tip side in the axial direction J, and the tip side rib 481 is located The portion of the narrow writing portion 81 on the front end side of the portion 8 is further to the rear side. Therefore, the tip end side of the holding portion 4 is opened, and the wall portion 431 protrudes toward the tip end side in the axial direction J. As a result, on the tip side of the holding portion 4, the tip portion of the writing portion 8 has more exposed portions. Therefore, it is easy to write in a state where the tip-side rib 481 is tilted toward the paper surface side and inclined.

The writing portion 8 has a width W1 (length) in the width direction W (refer to FIG. 7A), and is formed to be larger than a width T1 (length) in the thickness direction T (refer to FIG. 8A) (W1>T1). In more detail, in this embodiment, the width W1 of the writing portion 8 in the width direction W is as shown in FIG. 7A, in the width direction W, toward the axis of the writing instrument body 2 along the leading end of the writing portion 8 The length of the direction in which the direction J is inclined. The writing portion 8 has a width W1 (tracing width, the width of the portion in contact with the paper surface) in the width direction W which is thickened, preferably a writing portion with a tracing width of 2 mm or more, and more preferably a tracing of 3 mm or more The width of the writing department.

As shown in FIG. 7A, the leading end of the writing portion 8 is located on the side of the writing instrument body 2 on the side of the width direction W (the lower side in FIG. 7A) than the other side (the upper side in FIG. 7A). The axis direction J of the writing instrument body 2 is inclined. The wall portion 431 is arranged on one side in the width direction W of the writing portion 8.

The wall portion 431 is preferably a side surface that comes to the front side when writing on both sides of the tip of the inclined writing portion 8. The wall portion 431 is arranged on one side of the writing portion 8 in the width direction W, and can be provided on the side surface side that brings the wall portion 431 to the front side during writing, and becomes a natural gripping method. 431 write with the ruler in contact.

As shown in FIG. 9, the length of the wall portion 431 protruding toward the tip end is set such that the tip end 431a of the wall portion 431 is, for example, only the end portion located on the wall portion 431 side in the width direction W of the writing portion 8 The position of the leading end 8a is further to the back side by a distance A shorter than the thickness of the ruler 100. The "distance A shorter than the thickness of the ruler 100" is 1.5 mm or less, preferably 1.0 mm or less, and more preferably 0.5 mm or less from the writing surface, that is, the tip 8 a of the writing portion 8. Therefore, when a ruler 100 is used for scoring, the lateral end of the wall portion 431 is in contact with the ruler, so the exposed portion of the writing portion 8 does not contact the ruler. Therefore, when the ruler 100 is used for marking, the adhesion of the ink to the ruler can be suppressed, so that the ruler 100 can be prevented from being stained, and the writing part caused by friction between the writing part 8 and the ruler 100 can be prevented 8. Damaged.

As shown in FIGS. 4 and 7C, the restriction protrusion 432 protrudes inward in the radial direction from the inner surface of the distal end side of the locking portion 43 on the other side at a position separated from the distal end installation surface 471 toward the distal end side form. The restriction protrusion 432 extends in the thickness direction T, and the center of the thickness direction T is formed in a circular arc-shaped depression. The engaging convex portion 83 of the writing portion 8 is engaged with the engaging restricting portion 49 constituted by the restricting protrusion 432 and the tip-side installation surface 471, and on the other side, the writing portion 8 is restricted toward the tip side and the rear Move sideways. The restriction protrusion 432 and the tip-side installation surface 471 constitute the engagement restriction portion 49. The engagement restricting portion 49 is the other side locking portion 43 formed on the other side of the holding portion 4, and the engagement writing portion 8 engaged with the writing portion 8 constitutes the restriction writing portion 8 toward the tip end and Restriction mechanism for rear side movement.

The attachment portion 5 is formed in a plate shape and is attached to the shaft-side attachment portion 28 of the writing instrument body 2 as shown in FIGS. 5 and 6. The mounting portion 5 has a pair of mounting convex portions 51, a pair of first step portions 52, and a pair of second step portions 53.

The pair of mounting protrusions 51 are thickened in the thickness direction T from the outer sides of the mounting portion 5 in the thickness direction T toward the outside at the end side of the writing instrument body 2 side of the bold-side holder 3 And protruded in a plate shape. The mounting convex portion 51 has a fitting plate portion 511 arranged on the tip side, and an inclined introduction plate portion 512 formed behind the fitting plate portion 511. As shown in FIGS. 8A and 8B, the mounting convex portion 51 can be attached to the writing instrument body 2 by the fitting portion 281a fitted to the pair of protruding U-shaped portions 281.

As shown in FIGS. 5 and 6, the pair of first-stage portions 52 are a pair of one on the end side of the writing instrument body 2 side in the axial direction J of the bold-side holder 3 The rear end of the side rib 482 is cut out to form an L shape. The first step portion 52 has a first step difference surface 521 (step difference surface). The first step difference surface 521 is formed on the front end side of the first step portion 52 and is formed toward the rear side (writing instrument body 2 side). The first-stage difference surface 521 is in contact with the first abutment surface 282a of the first corner segment 282 disposed on the inner side of the writing instrument body 2 at the tip side of the writing instrument body 2.

As shown in FIGS. 5 and 6, the pair of second-stage portions 53 lock the other side surface at the end side of the writing instrument body 2 side in the axial direction J of the bold-side holder 3 The corner of the rear end of the portion 43 is cut out in a rectangular parallelepiped shape. The second step portion 53 has a second step difference surface 531 (step difference surface). The second step difference surface 531 is formed on the front end side of the second step portion 53 and is formed toward the rear side (writing instrument body 2 side). The second step difference surface 531 is in contact with the second abutment surface 283a of the second corner step portion 283 disposed on the inner side of the writing instrument body 2 at the front end side of the writing instrument body 2.

Next, a method of assembling the writing instrument 1 of this embodiment will be described. First, as shown in FIGS. 4 and 5, the bold-side writing core 6 is assembled on the bold-side holding body 3. Specifically, by mounting the bold-side writing core 6 from one side, the bold-side holding body 3 is assembled, and the holding portion 41 is opened at the tip side, and held narrowly by a pair of tip-side ribs 481. The portion 411 allows the writing portion 8 to be held by the pair of leading-end ribs 481 and the leading-end installation surface 471 in a state where movement to the leading end side is restricted, and opens the holding portion 42 on one side, the ink inducing portion 7 It is fitted between a pair of one-sided side ribs 482.

Thus, as long as the bold-side writing core 6 having an approximately L-shape is inserted from one side of the width-side W of the bold-side holding body 3, the bold-side writing core 6 can be easily assembled and held on the bold side Body 3. Since the bold-side writing core 6 is formed in an approximately L-shape, the visible portion V of the bold-side holding body 3 can be made larger than the U-shape.

Furthermore, by arranging the narrow writing portion 81 of the writing portion 8 on the narrow holding portion 411 of the tip opening holding portion 41, the movement to the tip end side in the axial direction J of the bold writing core 6 is restricted. Moreover, the engaging convex portion 83 of the writing portion 8 is engaged with the engaging restricting portion 49 composed of the restricting protrusion 432 and the tip-side installation surface 471, and on the other side of the width direction W, the The movement of the front end side and the rear side of the portion 8 is restricted. Thereby, it is possible to prevent the bold-side writing core 6 (writing portion 8) from falling out in the axial direction J of the bold-side holding body 3.

Next, as shown in FIG. 6, the mounting portion 5 of the bold-side holding body 3 to which the bold-side writing core 6 is mounted is attached to the tip of the writing instrument body 2. Specifically, the mounting portion 5 of the bold-side holding body 3 to which the bold-side writing core 6 is mounted is inserted into the rectangular opening 251 of the writing instrument body 2 from the front end side. Thus, as shown in FIGS. 8A and 8B, by fitting the pair of mounting convex portions 51 to the fitting portion 281a of the pair of protruding U-shaped portions 281, the bold side can be held The mounting portion 5 of the body 3 is mounted on the writing instrument body 2.

Here, since the pair of mounting convex portions 51 are fitted to the pair of fitting portions 281a, the mounting portion 5 of the bold-side holding body 3 is mounted on the writing instrument body 2, so the bold characters can be The side holding body 3 is installed without falling off from the writing instrument body 2. And because the mounting portion 5 of the bold-side holder 3 is formed in a plate shape, and the rectangular opening 251 of the writing instrument body 2 is a rectangular opening, the mounting portion 5 of the bold-side holder 3 is not easy for the writing instrument body 2 Spin.

In addition, inside the writing instrument body 2, the first step difference surface 521 of the first step portion 52 of the bold-face side holding body 3 is in contact with the first contact surface 282 a of the writing instrument body 2. In addition, inside the writing instrument body 2, the second-stage difference surface 531 of the second-stage portion 53 of the bold-side holder 3 is in contact with the second abutment surface 283 a of the writing instrument body 2. In the present embodiment, the first abutting surface 282a and the second abutting surface 283a are arranged on the inner side in the radial direction of the writing instrument body 2 on the rear side than the front end of the writing instrument body 2. As a result, since the contact portion between the stepped surfaces 521 and 531 and the contact surfaces 282a and 283a is located inside the writing instrument body 2, the mounting portion 5 and writing instrument body of the bold-side holding body 3 are not easily visible The gap between 2.

And as shown in FIG. 7B, since the leading end side of the inner surface of the cylindrical portion 24 on the side of the ink induction portion 7 where the rectangular opening 251 of the annular face portion 25 is arranged in the axial direction J, the following leading end is provided The inclined guide protrusion 284 formed to protrude toward the rear side can guide the ink inducing portion 7 toward the center of the radial direction of the cotton wool 29 by guiding the inclined protrusion 284, so that the cotton wool 29 can be directed toward the ink The induction section 7 supplies ink stably.

According to the writing instrument 1 of the present embodiment described above, the following effects can be achieved.

(1) Writing instrument 1, including: a writing instrument body 2 extending in a predetermined direction, and an ink inducing portion 7, and a writing portion 8, and a holding portion 4 holding the writing portion 8 and mounted on the writing instrument body 2 The holding body 3 of the mounting portion 5 opens the holding portion 4 so that the tip side is open, and at least one of the side surfaces is formed on a side where at least one of them can be written by the writing body and protrudes the tip of the writing portion 8 toward the tip side The structure of the wall portion 431 arranged along the side surface of the writing portion 8 in the state. Therefore, when a ruler 100 is used for scoring, the lateral end of the wall portion 431 is in contact with the ruler, so the exposed portion of the writing portion 8 does not contact the ruler. Therefore, when the ruler 100 is used for marking, the ink can be prevented from adhering to the ruler, so that the writing part 8 can be prevented from being stained, and the writing part caused by friction between the writing part 8 and the ruler 100 can be prevented 8. Damaged. Therefore, the writing part 8 does not come into contact with the ruler, and the writing instrument 1 can be easily manufactured. And in this embodiment, the tip end side of the holding portion 4 is opened, and the wall portion 431 protrudes toward the tip end side in the axial direction J. As a result, on the tip side of the holding portion 4, the tip portion of the writing portion 8 has more exposed portions. Therefore, it is easy to write in a state of being tilted down on the paper surface side.

(2) The writing portion 8 has a width W1 in the width direction W that is larger than the width T1 in the thickness direction T, and the leading end of the writing portion 8 is such that one side of the width direction W is located closer to the writing instrument than the other side The body 2 side is formed to be inclined with respect to the axis direction J of the writing instrument body 2, and the wall portion 431 is disposed on one side in the width direction W of the writing portion 8. Thereby, the wall portion 431 can be provided on the side surface side of the writing portion 8 on the front side during writing, and a natural gripping method can be used, and writing can be performed with the wall portion 431 in contact with the ruler.

(3) The ink inducing portion 7 and the writing portion 8 are writing cores 6 formed in an approximately L-shape. Thus, since the bold-side writing core 6 is formed into an approximately L-shape, as long as the roughly-L-shaped thick-side writing core 6 is inserted from one side of the bold-side holding body 3, the bold The character-side writing core 6 is assembled on the bold-side holding body 3.

(4) The holding portion 4 has a groove-shaped tip opening holding portion 41 that opens the tip side and one side surface, and the writing portion 8 is assembled from the tip side opening holding portion 41 to the tip side opening holding portion The portion 41 has a tip-end opening holding portion 41, and has a restricting mechanism (narrow holding portion 411, engagement restricting portion 49) that restricts the movement of the writing portion 8. Thus, as long as the bold-side writing core 6 is inserted from one side of the bold-side holding body 3, the bold-side writing core 6 can be easily assembled to the bold-side holding body 3. Furthermore, by arranging the narrow writing portion 81 of the writing portion 8 on the narrow holding portion 411 of the tip opening holding portion 41, the movement to the tip end side in the axial direction J of the bold writing core 6 is restricted. Then, by engaging the engaging convex portion 83 of the writing portion 8 with the restricting protrusion 432 and the tip-side installation surface 471 (engagement restricting portion 49), on the other side of the width direction W, the writing portion 8 is directed toward the writing portion 8 The movement of the tip side and the rear side is restricted. Thereby, it is possible to prevent the bold-side writing core 6 (writing portion 8) from falling out in the axial direction J of the bold-side holding body 3.

(5) The restricting mechanism includes a groove-shaped narrow holding portion 411 whose width decreases toward the front end in the opened portion of the holding portion 4 on the front end side. Thereby, it is possible to restrict the movement of the bold-side writing core 6 toward the front end side in the axial direction J with a simple structure.

(6) The holding portion 4 has a tip-side installation surface 471 disposed on the front end side of the bold-side holding body 3 and provided with the writing portion 8 and a side surface disposed on the side surface of the bold-side holding body 3 and provided A side surface installation surface 472 with the ink inducing portion 7 and a pair of front end ribs 481 standing upright from the front end installation surface 471 toward the front end side, and a pair of upright side ribs 481 standing upright from the side surface installation surface 472 toward one side side The one side rib 482, the narrow holding portion 411, is composed of a pair of front side ribs 481 whose width narrows at the front end side, and the writing core 6 is formed at the front end side of the holding portion 4 by the narrow holding portion 411 In a state where the movement of the tip side is restricted, the writing portion 8 is held by the pair of tip side ribs 481 and the tip side setting surface 471, and the ink induction portion 7 is blocked by one side of the holding portion 4 It is fitted between the pair of one side ribs 482 and is attached to the holding portion 4. Thus, as long as the bold-side writing core 6 is inserted from one side of the bold-side holding body 3, the bold-side writing core 6 can be easily assembled on the bold-side holding body 3, and can become the bold-side The writing core 6 does not easily fall out of the bold-side holding body 3.

(7) The restriction mechanism has an engagement restriction portion 49 formed on the other side of the holding portion 4 and engaged with the writing portion 8. Thereby, with a simple configuration, the movement of the bold-side writing core 6 toward the front end side and the rear side in the axial direction J can be restricted.

(8) The bold-side holding body 3 has a visible portion V that can visually confirm the writing direction during writing. Thus, by providing the visible portion V on the bold-side holding body 3, it is possible to confirm the writing body such as characters and lines written in the writing direction, so that it is easy to understand the end of writing and the end of scoring.

(9) The mounting portion 5 has the stepped surfaces 521 and 531 formed toward the writing instrument body 2 side, and the writing tool body 2 has the stepped surfaces 521 formed inside the writing instrument body 2 and formed toward the bold side holding body 3 side The abutting surfaces 282a and 283a in which 531 abuts, and the abutting surfaces 282a and 283a are arranged on the rear side of the tip of the writing instrument body 2. Thus, since the contact portion between the stepped surfaces 521 and 531 and the contact surfaces 282a and 283a is located inside the writing instrument body 2, the mounting portion 5 and writing instrument body of the bold-side holding body 3 can be hardly seen The gap between 2. Therefore, the appearance design effect can be improved.

(10) The writing instrument body 2 is formed into a cylindrical shape, and protrudes from the inner surface of the writing instrument body 2 toward the radial center side and guides the ink guide 7 toward the radial center of the writing instrument body 2导倾斜部284. Thereby, the ink-inducing portion 7 can be guided toward the center side of the radial direction of the cotton wool 29 by the guide inclined protrusion 284, so that the ink can be stably supplied from the cotton wool 29 toward the ink guiding portion 7.

Although a preferred embodiment of the writing instrument 1 of the present invention has been described above, the present invention is not limited to the above-mentioned embodiment, and can be suitably changed as long as it does not depart from the gist of the present invention. For example, in the foregoing embodiment, the writing instrument of the present invention has described an example of a singular pen using cotton wool containing ink, but it is not limited to this. For example, a writing implement can also be applied to a direct liquid type using a valve mechanism and a bellows mechanism.

In addition, in the foregoing embodiment, the bold writing core 6 having an approximately L-shape is composed of the ink guide portion 7 and the writing portion 8 integrally. When the bold-side writing core 6 is integrally formed, the bold-side writing core 6 may be constituted by one component, and the bold-side writing core 6 is constituted by respective components of the ink inducing portion 7 and the writing portion 8 You can connect to each other again. In addition, the ink induction portion 7 may be formed by a hole formed directly in the holder.

Moreover, in the holding portion 4 of the foregoing embodiment, the writing portion 8 or the ink-inducing portion 7 is in contact with the surface (tip-side installation surface 471, one side-side installation surface 472, front-end side rib 481, and one side-side rib 482) Bumps and wrinkles are also acceptable. By providing irregularities and wrinkles on the surface where the writing portion 8 or the ink-inducing portion 7 contacts, the writing portion 8 or the ink-inducing portion 7 is less likely to fall off from the holding portion 4.

1: writing tools 1a: bold font 1b: fine writing pen 2: writing instrument body 3: bold font side retainer (retainer) 4: Holding Department 5: Installation Department 6: bold writing side writing core (writing core) 7: Ink induction section 8: writing department 8a: apex 11: Big hat 12: Little cap 21: Shaft section 22: body shaft 23: thick core side shaft barrel 24: barrel 25: ring face 26: Flange 27: Bolt groove on thick core side 28: Mounting section on shaft side 29: cotton batting 41: Open holding part at the apex side (narrow holding part) 42: One side opening holding part 43: The other side locking part 47: apex side setting surface 47: Setting surface 48: one side rib 49: Engagement restriction section (restriction mechanism) 51: Mounting protrusion 52: Section 1 53: Section 2 81: Narrow writing department 82: Rear pedestal 83: Engagement convex 100: ruler 221: Body side bolt groove 251: rectangular opening 281: Protruding U-shaped part 281a: Fitting part 281b: Guide protrusion 282: 1st corner section 282a: 1st abutment surface 283: 2nd corner section 283a: 2nd abutment surface 284: Guide inclined protrusion 411: Narrow holding section (restriction mechanism) 431: Wall 431a: apex 432: Limit protrusion 471: apex side setting surface 472: One side side setting surface 481: apex side rib 482: One side rib 511: Fitting plate part 512: Inclined lead plate section 521: Paragraph 1 difference surface 531: Second difference V: Visual Department

[Figure 1] A perspective view showing the writing instrument of the present invention. [Figure 2] An exploded perspective view of the writing instrument of the present invention. [Figure 3] A perspective view showing an enlarged display of a part of a bold writing tip of a writing implement. [Figure 4] A perspective view from the upper side of a form in which a bold writing side writing core is assembled to a writing instrument body through a bold writing side holding body. [Figure 5] A perspective view from the lower side of the form in which the bold writing side writing core is assembled to the writing instrument body through the bold writing side holding body. [Fig. 6] A perspective view showing a state in which a bold type side holding body to which a bold type side writing core is attached is assembled in a writing body. [Fig. 7A] A-A sectional view of Fig. 3. [Fig. 7B] A sectional view taken along the line B-B in Fig. 3. [Fig. 7C] A cross-sectional view taken along line C-C of Fig. 3. [Figure 8A] Sectional view taken along the line D-D in Figure 3. [Figure 8B] Sectional view taken along the line E-E of Figure 3. [Fig. 9] A diagram showing the case of using a ruler to draw a line with a writing instrument.

2: writing instrument body

3: bold font side retainer (retainer)

4: Holding Department

6: bold writing side writing core (writing core)

7: Ink induction section

8: writing department

8a: apex

21: Shaft section

23: thick core side shaft barrel

24: barrel

25: ring face

29: cotton batting

43: The other side locking part

100: ruler

251: rectangular opening

431: Wall

431a: apex

Claims (10)

A writing instrument with: Writing instrument body extending in a specified direction, and An ink-inducing portion that induces ink contained in the writing instrument body and extends in the axial direction of the writing instrument body, and A writing part that is connected to the leading end side of the ink induction part and is induced toward the ink induction part by the writing body can be used, and A holding body having a holding portion holding the writing portion and a mounting portion attached to the writing instrument body, The holding portion is opened at the tip side, and at least one of the side surfaces is formed along the side of the writing portion in a state where the tip of the writing portion protrudes toward the tip side and can be written by the writing body Configuration wall. The writing implement as described in item 1 of the patent application scope, in which The aforementioned writing portion has a length in the width direction greater than that in the thickness direction, The tip of the writing portion is formed so that one side in the width direction is located closer to the writing instrument body side than the other side in the width direction, and is inclined with respect to the axis direction of the writing instrument body, The wall portion is arranged on one side in the width direction of the writing portion. The writing implement as described in item 1 or 2 of the patent application scope, in which The ink-inducing portion and the writing portion constitute a writing core formed into an approximately L-shape. The writing implement as described in any one of items 1 to 3 of the patent application scope, wherein, The holding portion has a groove-shaped writing portion holding portion that is opened on the tip side and one side side, The writing part is assembled to the writing part holding part from one side of the writing part holding part, The writing part holding part has a restricting mechanism that restricts the movement of the writing part. The writing implement as described in item 4 of the patent application scope, in which The restriction mechanism includes a groove-shaped narrow holding portion whose width decreases toward the front end in the opened portion on the front end side of the holding portion. The writing implement as described in item 5 of the patent application scope, in which The holding portion has a tip-side installation surface disposed on the tip side of the holder and provided with the writing portion, and a side surface disposed on a side surface of the holder and provided with the ink induction portion A surface, and a pair of front side ribs standing upright from the front end side toward the front side, and a pair of one side side ribs standing upright from the one side side toward the side surface, The ink-inducing portion and the writing portion constitute a writing core formed into an approximately L-shape, The narrow holding portion is constituted by the pair of tip side ribs whose width narrows toward the tip side, The writing lead is formed by the pair of tip-side ribs and the aforesaid pair of tip-side ribs and the above-mentioned pair of tip-side ribs. The tip-side installation surface holds the writing portion, and the ink-inducing portion is fitted between the pair of one side ribs on one side of the holding portion to be attached to the holding portion. The writing implement as described in item 5 or 6 of the patent application scope, in which The restriction mechanism includes an engagement restriction portion formed on the other side of the holding portion and engaged with the writing portion. The writing implement as described in any one of items 1 to 7 of the patent application scope, wherein, The aforementioned holder has a visible portion that allows visual confirmation of the writing direction during writing. The writing implement according to any one of items 1 to 8 of the patent application scope, wherein, The mounting portion has a stepped surface formed toward the side of the writing instrument body, The writing instrument body has an abutting surface formed inside the writing instrument body and formed toward the holding body side, and the stepped surface abuts, The abutment surface is arranged behind the tip of the writing instrument body. The writing implement according to any one of items 1 to 9 of the patent application scope, wherein, The writing instrument body is formed in a cylindrical shape, and has a guide portion protruding from an inner surface of the writing instrument body toward a radial center side to form a guide portion that guides the ink guide portion toward the radial center side of the writing instrument body.

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